Product Details: "Watch model: GQ8031, Watch Model: Men's Watch - Couple Watch Case material: 316 stainless steel Strap material: stainless steel strap Case width: 39mm Case thickness: 8.8mm Strap width: 20mm Strap length: 140-220mm Buckle material: butterfly buckle Watch movement: Japanese quartz movement Glass material: sapphire glass Electroplating process: vacuum electroplating Watch weight: 118g" "Watch model: LQ8031, Watch Model: Ladies Watch - Couple Watch Case material: 316 stainless steel Strap material: stainless steel strap Case width: 28.2mm Case thickness: 7.3mm Strap width: 14mm Strap length: 140-200mm Buckle material: butterfly buckle Watch movement: Japanese quartz movement Glass material: sapphire glass Electroplating process: vacuum electroplating Watch weight: 60g" Package Contents: Stainless Steel Watch X1